2001264 has 40 divisors (see below), whose sum is σ = 5221392. Its totient is φ = 660480.

The previous prime is 2001247. The next prime is 2001269. The reversal of 2001264 is 4621002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8184 + ... + 8424.

2^2001264 is an apocalyptic number.

2001264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2001264 is an abundant number, since it is smaller than the sum of its proper divisors (3220128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001264 is a wasteful number, since it uses less digits than its factorization.

2001264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2001264 is about 1414.6603832723. The cubic root of 2001264 is about 126.0186417366.

Adding to 2001264 its reverse (4621002), we get a palindrome (6622266).

The spelling of 2001264 in words is "two million, one thousand, two hundred sixty-four".